± 250 ppm / ± 150 ppm / max. working voltage 150 V 200 V 250 V 400 V 700 V

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1 FEATURES High power dissipation in small volume High pulse load handling capabilities. APPLICATIONS Ballast switching Shunt in small electric motors Power supplies. DESCRIPTION The resistor element is a resistive wire which is wound in a single layer on a ceramic rod. Metal caps are pressed over the ends of the rod. The ends of the resistance wire and the leads are connected to the caps by welding The resistor is coated with a brown or green silicone lacquer TYPE D ±0.8 Dimensions (mm) L ±0.8 L 2 Max. d (±0.05) WWR W WWR 2W /0.8 WWR 3W WWR 5W WWR 0W QUICK REFERENCE DATA DESCRIPTION resistance range inductive non inductive VALUE WWR W WWR 2W WWR 3W WWR 5W WWR 0W 0.04Ωto Ω 0.04Ωto Ω 50Ω 470Ω resistance tolerance ±0%, ±5%, ±2%( E24 ) ±%( E48, E96 ) ±0.5%( R Ω, E8 ) temperature coefficient R < 0.Ω R 0.Ω rated dissipation at T amb = 70 ± 250 ppm / ± 50 ppm / 0.Ωto 470Ω 0.Ωto W 2 W 3W 5W 0W max. working voltage 50 V 200 V 250 V 400 V 700 V basic specifications IEC and climatic category (IEC60068) stability, R/R max after load : 0 hours 40 / 200 / 56 ±5%+0.Ω ±5%+0.Ω ±5%+0.Ω ±5%+0.Ω ±5%+0.Ω damp heat steady state ±3%+0.Ω ±3%+0.Ω ±3%+0.Ω ±3%+0.Ω ±3%+0.Ω climatic tests ±3%+0.Ω ±3%+0.Ω ±3%+0.Ω ±3%+0.Ω ±3%+0.Ω soldering ±%+0.05Ω ±%+0.05Ω ±%+0.05Ω ±%+0.05Ω ±%+0.05Ω

2 ORDERING INFORMATION Table. Inductive Note : 0.5% : Ω Type WWR W WWR 2W WWR 3W WWR 5Ws Bandolier width Packing Quantity Resistance range 52mm ammo, Ω to Ω Tol. ± % Ordering code 0.5 PWWR 37 6xxxx PWWR 7 7xxxx 2 PWWR 7 28xxx 5 PWWR 7 55xxx S-F 5.0mm bulk PWWR 7 4xxxx, Ω to Ω S-F 20.0mm bulk PWWR 7 6xxxx R-Shape, Ω to Ω 52mm ammo, Ω to Ω PWWR 7 3xxxx 2 PWWR 7 22xxx 5 PWWR 7 52xxx 0.5 PWWR 372 6xxxx PWWR 372 7xxxx 2 PWWR xxx 5 PWWR xxx S-F 20.0mm bulk,000 5 PWWR 72 57xxx R-Shape,500 64mm ammo Ω to 50Ω 0.02Ω to 50Ω PWWR 72 3xxxx 2 PWWR 72 22xxx 5 PWWR 72 52xxx PWWR 73 xxxx 2 PWWR 73 2xxx 5 PWWR 73 5xxx S-F 22.5mm bulk 5 PWWR 73 58xxx,000 M-F 20.0mm bulk 5 PWWR 73 28xxx 64mm ammo Ω to 470Ω PWWR 77 xxxx 2 PWWR 77 24xxx 5 PWWR 77 5xxx S-F 23.0mm bulk 5 PWWR 77 58xxx,000 M-F 23.0mm bulk 5 PWWR 77 53xxx WWR 0W 0mm bulk 0.Ω to 470Ω PWWR 76 6xxxx 2 PWWR 76 24xxx 5 PWWR 76 54xxx

3 ORDERING INFORMATION Table 2. Non Inductive Type WWR W WWR 2W WWR 3W WWR 5Ws Bandolier width Packing Quantity Resistance range 52mm ammo, Ω to Ω Tol. ± % Ordering code 0.5 PWWR 47 6xxxx PWWR 27 7xxxx 2 PWWR 27 28xxx 5 PWWR 27 55xxx S-F 5.0mm bulk PWWR 27 4xxxx, Ω to Ω S-F 20.0mm bulk PWWR 27 6xxxx R-Shape, Ω to Ω 52mm ammo, Ω to Ω PWWR 27 3xxxx 2 PWWR 27 22xxx 5 PWWR 27 52xxx 0.5 PWWR 472 6xxxx PWWR 472 7xxxx 2 PWWR xxx 5 PWWR xxx S-F 20.0mm bulk,000 5 PWWR xxx R-Shape,500 64mm ammo Ω to 50Ω 0.02Ω to 50Ω PWWR 272 3xxxx 2 PWWR xxx 5 PWWR xxx PWWR 273 xxxx 2 PWWR 273 2xxx 5 PWWR 273 5xxx S-F 22.5mm bulk 5 PWWR xxx 0 M-F 20.0mm bulk 5 PWWR xxx 64mm ammo Ω to 470Ω PWWR 277 xxxx 2 PWWR xxx 5 PWWR 277 5xxx S-F 23.0mm bulk 5 PWWR xxx,000 M-F 23.0mm bulk 5 PWWR xxx WWR 0W 0mm bulk 0.Ω to 470Ω PWWR 276 6xxxx 2 PWWR xxx 5 PWWR xxx

4 Limiting values Table 3 TYPE LIMITING VOLTAGE ( ) (V) LIMITING POWER (W) WWR W 50 WWR 2W WWR 3W WWR 5W WWR 0W Note. the maximum voltage that may be continuously applied to the resistor element, see IEC publication The maximum permissible hot spot temperature is 350. Derating curve The power that the resistor can dissipate depends on the operating temperature : Fig. P max. ( % ) T amb ( ) Fig. Maximum dissipation (P max ) in percentage of rated power as a function of the ambient temperature (T amb )

5 PULSE LOADING CAPABILTIES Fig. 2 Pulse capability; W s as a function of R n. ( WWR W ) R n (Ω ) Rn(Ω ) 0 3 Fig. 3 Pulse capability; W s as a function of R n. ( WWR 2W ) Rn(Ω ) Fig. 4 Pulse capability; W s as a function of R n. ( WWR 3W )

6 Rn(Ω ) Fig. 5 Pulse capability; W s as a function of R n. ( WWR 5W ) Rn(Ω ) Fig. 6 Pulse capability; W s as a function of R n. ( WWR 0W ) W 250 ΔT( ) W 2W 3W 5W P(W) Fig. 7 Hot spot temperature rise ( T ) as a function of dissipated power

7 MECHANICAL DATA Table 4. Mass per units TYPE MASS ( g ) WWR W 55 WWR 2W 72 WWR 3W 33 WWR 5W 358 WWR 0W 595 MARKING The nominal resistance and tolerance are marked on the resistor using four or five colored bands in accordance with IEC publication color codes for fixed resistors Table 5. BODY COLORS TYPE Non inductive COLORS Inductive WWR W Light brown Light green WWR 2W Light brown Light green WWR 3W Light brown Light green WWR 5W Light brown Light green WWR 0W Black

8 TEST AND REQUIREMENTS Table 6. Test procedures and requirements TEST PROCEDURE REQUIREMENTS terminal strength Load : 4.5Kg ; 0s No evidence of mechanical damage or loosening terminals. bending half number of samples torsion other half of samples load : 0.5Kg ; 4x90 no damage 3x360 in opposite directions no damage R/R max : ±0.25%+0.05Ω solderability 5s; 260 good tinning ; 95% resistance to soldering heat rapid change of temperature damp heat (steady state) endurance endurance at upper category temperature temperature coefficient insulation resistance short time overload dielectric withstanding voltage thermal shock : 3s; 350 ; 2.5mm from body 30minutes at 40 and 30minutes at +200 ; 5cycles 56days; 40 ; 90 to 95% RH; dissipation 0.0 P n 0hours at 70 ; P n or V max.5 hours on and 0.5 hours off R/R max : ±2%+0.05Ω R/R max : ±2%+0.05Ω R/R max : ±3.0%+0.Ω R/R max : ±5.0%+0.Ω 0 hours; 200 ; no load R/R max : ±5.0%+0.Ω between 40 and +200 (TC x 0-6 /K) 500V DC during minute; V-block method rated voltage x 2.5, 5s on 45s off 5cycles ( V V max ) 500V RMS during minute; V-block method R < 0.R : ±250ppm / C R 0.R : ±50ppm / C R ins min : 0 MΩ R/R max : ±2.0%+0.05Ω no breakdown